Preparation method of fullerene two-dimensional strip-shaped structure

Abstract

The invention relates to a preparation method of a fullerene two-dimensional strip-shaped structure. The preparation method comprises the following steps of: dissolving fullerene C60 in carbon disulfide to obtain a fullerene-carbon disulfide solution; directly dropping the fullerene-carbon disulfide solution on a substrate; and finally, naturally drying to obtain the fullerene two-dimensional strip-shaped structure; or slowly covering alcohol on the surface of fullerene-carbon disulfide solution, and standing to obtain the fullerene two-dimensional strip-shaped structure. The preparation method of the fullerene two-dimensional strip-shaped structure is simple and quick. The fullerene two-dimensional strip-shaped structure prepared by the preparation method disclosed by the invention is a 100% fullerene crystal, good in dispersity, capable of being prepared in large area, and capable of preparing the unmodified fullerene self-assembling structure in a controllable manner, so that the integrity and inherent quality of the fullerene molecule structure are ensured. Moreover, the obtained fullerene two-dimensional strip has potential application prospect in the organic photoelectric and catalytic material field.

Description

technical field [0001] The invention belongs to the field of preparation of fullerene functional materials, in particular to a preparation method of a fullerene two-dimensional band shape. Background technique [0002] Fullerene (C 60 ) is a class of nano-carbon materials with a special spherical symmetrical molecular structure and excellent physical and chemical properties. In recent years, its application prospects in photoelectric conversion device materials such as organic solar cells have attracted much attention. Critical approach to crisis (Dubacheva G.V., et al, Coord. Chem. Rev., 2012, 256, 2628–2639). C 60 As a key structural unit in the active layer of photoelectric conversion devices, studies have found that by regulating the self-assembled structure of fullerenes, the performance of the device can be effectively improved (Guld D.M., et al, Chem.Soc.Rev., 2009, 38, 1587–1597). Therefore, by controlling the self-assembly behavior of fullerenes, the controllabl...

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Problems solved by technology

However, in order to controllably prepare fullerenes with different morphologies and structures, it is generally necessary to chemically modify fullerenes to synthesize fullerene derivatives. As a result, on the one hand, the complete conjugated structure of fullerenes is destroyed, resulting in their inherent photoelectric properties. On the other hand, the introduction of non-conductive bulky substituents greatly reduces the content of fullerene components in the derivatives, further significantly reducing the inherent photoelectric properties of fullerenes

For example, a recently reported fullerene derivative with a long alkyl chain can self-assemble into a complex three-dimensional flower-like structure (Li H., et al, J. Mater. Chem. C, 2013, 1, 1943–1951 ), but the content of fullerene itself is only 54%, which seriously weakens the photoelectric properties of fullerene itself

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